Q: Which of the following is the correct formula for calculating the mass number of an atom?

$\text{Mass number} = \text{Number of protons} + \text{Number of neutrons}$

Question 1

Which type of membrane junction allows ions and small molecules to pass directly from one cell to another, facilitating rapid communication in cardiac muscle?

Accepted Answer

Gap junction

Question 2

Which tissue type lines the stomach and intestines, providing protection and facilitating absorption and secretion?

Accepted Answer

Simple columnar epithelium

Question 3

A patient presents with severe mechanical stress in the esophagus. Which epithelial tissue is most likely found lining this organ?

Accepted Answer

Stratified squamous epithelium

Question 4

Which of the following is NOT a function of bone?

Accepted Answer

Hormone synthesis

Question 5

Which cell organelle is responsible for packaging and modifying proteins for secretion?

Accepted Answer

Golgi apparatus

Question 6

Which type of cartilage is found in the intervertebral discs and provides resistance to compression?

Accepted Answer

Fibrocartilage

Question 7

Hematopoiesis, the process of blood cell formation, primarily occurs in which part of the bone?

Accepted Answer

Red bone marrow

Question 8

Which of the following best describes a bursa?

Accepted Answer

A fluid-filled sac that reduces friction between moving structures

Question 9

Which of the following is a synovial joint?

Accepted Answer

Ball-and-socket

Question 10

Which directional term describes a structure that is closer to the head than another structure?

Accepted Answer

Superior

Question 11

Which feedback mechanism is responsible for maintaining homeostasis by reversing a change in a controlled condition?

Accepted Answer

Negative feedback

Question 12

A cell placed in a hypotonic solution will:

Accepted Answer

Swell and possibly burst due to water influx

Question 13

Which of the following accelerates the rate of chemical reactions in the human body?

Accepted Answer

Enzymes

Question 14

Which of the following is the correct formula for calculating the mass number of an atom?

Accepted Answer

$	ext{Mass number} = 	ext{Number of protons} + 	ext{Number of neutrons}$

Question 15

Which of the following is a characteristic of acids?

Accepted Answer

Release hydrogen ions ($H^+$) in solution

Question 16

Which of the following best describes the process of transcription?

Accepted Answer

Copying DNA into mRNA

Question 17

Which plane divides the body into right and left halves?

Accepted Answer

Sagittal plane

Question 18

Which of the following factors influences skin color?

Accepted Answer

Amount of melanin produced

Question 19

A third-degree burn damages which layers of the skin?

Accepted Answer

Epidermis, dermis, and subcutaneous layer

Question 20

Which of the following is a diarthrotic joint?

Accepted Answer

Synovial joint

Comprehensive Study Guide: Anatomy & Physiology Chapters 1-8

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